Following many quiet months, the Rocket Racing League has come back on the radar, much to our rocket-loving delight. In the first-ever public flights, two Mark III X-Racers will be flying demonstrations at the Tulsa Air and Rocket Racing Show this Saturday, April 24th. The vehicles are capable of speeds up to 250 mph (~400 kph) and are powered by engines providing 2500-lbs (~11,000 N) of thrust -- not to mention the 15 ft/4.5m long exhaust flame that trails behind.